Conservative Dentistry Journal

Forensic Identification Using Dental Restorations: A Radiographic and Material-Based Perspective

Wed, 26 Mar 2025 00:00:00 +0700

Background: Forensic identification is a critical aspect of criminal investigations and disaster victim identification (DVI). Dental records, particularly dental restorations, serve as essential forensic markers due to their resistance to decomposition and environmental conditions. The integration of radiographic imaging and material-based analysis enhances the accuracy of forensic identification, allowing experts to match post-mortem findings with ante-mortem records. Purpose: This literature review aims to explore the role of dental restorations in forensic identification, focusing on the radiographic techniques and material-based forensic analysis used in modern forensic odontology. Reviews: This literature discusses the durability and uniqueness of dental restorations in forensic investigations. Various radiographic techniques, including periapical, panoramic, and cone-beam computed tomography (CBCT) imaging, are examined for their effectiveness in detecting and analyzing restorations. Additionally, the forensic relevance of restorative materials—such as amalgam, composite resins, ceramics, and metal-based prosthetics—is evaluated in cases where conventional soft tissue or DNA-based identification is not feasible. The review also explores technological innovations, including machine learning algorithms and digital forensic methods, that enhance forensic odontology. Conclusion: Dental restorations remain one of the most reliable forensic markers, particularly in challenging identification cases where DNA and soft tissues are compromised. The integration of advanced radiographic imaging and material analysis significantly enhances the precision of forensic identification. Future developments in AI-driven forensic imaging and automated restoration detection will further strengthen forensic odontology as a crucial field in legal and disaster investigations.

Evaluation of the relationship between pneumatization of mastoid process, articular eminence and glenoid fossa on CBCT

Sedef Kontanli, Eda Didem Yalçin — Wed, 26 Mar 2025 00:00:00 +0700

Background: Pneumatization refers to air-filled spaces within the bone. The studies about articular tubercle/eminence pneumatization were only few in numbers with unclear information regarding the data on pneumatization in this region. PAT may become predisposed to the spread of inflammatory processes along the temporomandibular joint. Traumatic occlusion, one of the triggers of the TMJ inflammatory process, can occur during conservative dentistry treatment which requires the attention of a dentist to avoid TMJ disorder.

Objectives: This study aimed to evaluate the prevalence, characteristics and relationships of mastoid process pneumatization (MPP), articular tubercle/eminence pneumatization (PAT), and glenoid fossa pneumatization (PGF) in one population in Turkey by using cone-beam computed tomography (CBCT).

Methods: In total, 739 of CBCT images were examined retrospectively. The prevalences of the pneumatization by age, gender, laterality and locularity were detected. Independent t-test and the chi-square test for the significance of differences between variables.

Results: Apneumatic type MPP was detected in 3.1% of cases, partial pneumatic type MPP in 33.6%, pneumatic type MPP in 63.3% of cases. PGF was detected in 28.0% of the sides and PAT in 23.7% of cases. There was no statistically significant relationship found between the presence of PAT and PGF with gender and age (p>0.05). In 45 cases with a pneumatic type MPP, PGF was not observed in any of them, while no PAT was determined in 44 (97.8%) of 45 cases. Pneumatic type mastoid was detected in 309 (92.8%) of 333 cases with multilocular PGF and in 89 (82.4%) of 108 cases with unilocular PGF. There was a statistically significant relationship found between MPP and PAT with PGF types (p <0.05).

Conclusion: It is necessary to detect these air gaps before TMJ surgery to prevent complications during and after the operation. It will be more accurate if PAT and PGF are assessed on 3D technics than on 2D radiographs. Relationship between MPP pneumatization degree and PAT and PGF can help for understanding the features and functions of PAT and PGF, it has been considered useful to also determine the prevalence and characteristics of PAT in a population of traumatic patients of occlusion treatment and to examine the possible relationship between traumatic types of occlusions and pneumatized articular eminence.

Effect of Butterfly Pea Flower (Clitoria ternatea L.) Kombucha Against Streptococcus viridans

Wed, 26 Mar 2025 00:00:00 +0700

Background: Dental caries is a multifactorial disease driven by the formation of bacterial biofilms, particularly Streptococcus viridans, which contribute to root canal infections if not appropriately managed. Sodium hypochlorite (NaOCl) is commonly used as an irrigant in root canal therapy, but its application is limited due to its toxicity and corrosiveness. Consequently, there is a pressing need for safer and more effective natural alternatives. Kombucha derived from butterfly pea flower (Clitoria ternatea L.) has been identified as a promising candidate with antibacterial and antibiofilm properties due to its bioactive secondary metabolites. The fermentation process involving a symbiotic culture of bacteria and yeast (SCOBY) may further enhance the efficacy of these bioactive compounds. Purpose: This study conducted to analyze the effect of kombucha from butterfly pea flower (Clitoria ternatea L.) on the biofilm of Streptococcus viridans in vitro, utilizing a spectrophotometric method to assess the impact across various concentrations. Methods: An experimental laboratory study was conducted in vitro employing a post-test-only control group design. Kombucha prepared from butterfly pea flower was fermented for periods ranging from 12 to 154 days, followed by dilution into several concentrations (100%, 50%, 25%, 12.5%, 6.25%, 3.12%, and 1.56%) using the dilution method. Direct contact between the kombucha and Streptococcus viridans was established, and the resulting biofilm inhibition was assessed by measuring the Optical Density (OD) using a spectrophotometer at a wavelength of 650 nm. Results: The inhibitory percentage of butterfly pea flower kombucha against Streptococcus viridans biofilm decreased progressively with concentrations of 100%, 50%, 25%, 12.5%, 6.25%, 3.125%, and 1.56%. The highest inhibitory percentage was observed at a concentration of 100%. Conclusion: Kombucha of butterfly pea flower (Clitoria ternatea L.) demonstrated potential in inhibiting Streptococcus viridans biofilm formation, with a concentration of 25% determined as the MBIC50. However, an MBEC90 value could not be established, as no biofilm inhibition percentage exceeding 90% was observed in the test results.